package com.youbo.cloudmall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.youbo.cloudmall.product.dao.AttrAttrgroupRelationDao;
import com.youbo.cloudmall.product.dao.AttrGroupDao;
import com.youbo.cloudmall.product.dao.CategoryDao;
import com.youbo.cloudmall.product.entity.AttrAttrgroupRelationEntity;
import com.youbo.cloudmall.product.entity.AttrGroupEntity;
import com.youbo.cloudmall.product.entity.CategoryEntity;
import com.youbo.cloudmall.product.service.CategoryService;
import com.youbo.cloudmall.product.vo.AttrGroupRelationVo;
import com.youbo.cloudmall.product.vo.AttrRespVo;
import com.youbo.cloudmall.product.vo.AttrVo;
import com.youbo.common.constant.ProductConstant;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.youbo.common.utils.PageUtils;
import com.youbo.common.utils.Query;

import com.youbo.cloudmall.product.dao.AttrDao;
import com.youbo.cloudmall.product.entity.AttrEntity;
import com.youbo.cloudmall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    private AttrAttrgroupRelationDao attrAttrgroupRelationDao;

    @Autowired
    private AttrGroupDao attrGroupDao;

    @Autowired
    private CategoryDao categoryDao;

    @Autowired
    private CategoryService categoryService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        //保存基本数据
        this.save(attrEntity);
        //保存关联关系
        if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId() != null){
            AttrAttrgroupRelationEntity relation = new AttrAttrgroupRelationEntity();
            relation.setAttrGroupId(attr.getAttrGroupId());
            relation.setAttrId(attrEntity.getAttrId());
            attrAttrgroupRelationDao.insert(relation);
        }

    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId,String attrType) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<>();
        if (catelogId != 0) queryWrapper.eq("catelog_id",catelogId);

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        queryWrapper.eq("attr_type","base".equalsIgnoreCase(attrType) ? ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() : ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params),queryWrapper);
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> respVos = page.getRecords();
        List<AttrRespVo> respVoList = respVos.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            AttrAttrgroupRelationEntity relation = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
            //设置分组和分类名字
            if ("base".equalsIgnoreCase(attrType)) {
                if (relation != null && relation.getAttrGroupId() != null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relation.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) attrRespVo.setCatelogName(categoryEntity.getName());
            return attrRespVo;
        }).collect(Collectors.toList());
        System.out.println(respVoList);
        pageUtils.setList(respVoList);
        return pageUtils;
    }

    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);
        //分组信息
        AttrAttrgroupRelationEntity relation = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
        if (relation != null) {
            respVo.setAttrGroupId(relation.getAttrGroupId());
            AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relation.getAttrGroupId());
            if(attrGroupEntity != null) respVo.setGroupName(attrGroupEntity.getAttrGroupName());
        }

        //分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if (categoryEntity != null) respVo.setCatelogName(categoryEntity.getName());
        return respVo;
    }

    @Override
    @Transactional
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        AttrAttrgroupRelationEntity relation = new AttrAttrgroupRelationEntity();
        relation.setAttrGroupId(attr.getAttrGroupId());
        relation.setAttrId(attr.getAttrId());
        Integer count = attrAttrgroupRelationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
        if (count > 0) {
            //修改分组关联
            attrAttrgroupRelationDao.update(relation,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
        } else {
            attrAttrgroupRelationDao.insert(relation);
        }
    }

    //根据分组id查找关联的所有基本属性
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> relationEntities = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        if (relationEntities != null) {
            List<Long> attrIds = relationEntities.stream().map((attr) -> {
                return attr.getAttrId();
            }).collect(Collectors.toList());
            if (attrIds.size() > 0 && attrIds != null) {
                return this.listByIds(attrIds);
            }
        }
        return null;
    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        //attrAttrgroupRelationDao.delete(new QueryWrapper<>().eq("attr_id",).eq("attr_group_id",))
        List<AttrAttrgroupRelationEntity> relationEntities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relation = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relation);
            return relation;
        }).collect(Collectors.toList());
        attrAttrgroupRelationDao.deleteBatchRelation(relationEntities);
    }


    //获取当前分组没有关联的所有属性
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属分类里面的属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();

        //2、当前分组只能关联别的分组没有引用的属性
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> list = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());
        List<AttrAttrgroupRelationEntity> relationEntities = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", list));
        List<Long> attrIds = relationEntities.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type", ProductConstant.AttrEnum.ATTR_TYPE_BASE);
        if (attrIds != null && attrIds.size() > 0) {
            queryWrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            queryWrapper.and(w->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }

    /**
     * 在所指定的所有属性集合里面，挑出检索属性。
     * @param attrIds
     * @return java.util.List<java.lang.Long>
     */

    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {
        return baseMapper.selectSearchAttrIds(attrIds);
    }

}
